MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF was flagged by ML classifiers and ClamAV as malicious, indicating a high likelihood of malicious intent. It contains a link farm with numerous URLs, many hosted on potentially disposable domains, suggesting a phishing or malware distribution scheme. The presence of external URIs and a link farm heuristic points towards an attempt to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL http://hydrogears.com/survey/userfiles/files/82152733753.pdf In PDF document text
- http://hantechwelding.com/userfiles/file/2021090822085573499.pdfIn PDF document text
- https://perfecthospitals.org/FCKeditor/file/kepureke.pdfIn PDF document text
- http://idominjazz.com/fckeditor/userfiles/image/26226567117.pdfIn PDF document text
- http://someteme.com/archivos/_20210902011706.pdfIn PDF document text
- https://inverpalmas.com/aym_image/files/mukewabuxixebujober.pdfIn PDF document text
- http://gzlmjx.com/data/home/bxu2343160066/htdocs/uploadfile/files/punufasejutixonoso.pdfIn PDF document text
- https://swalaya.in/userfiles/file/17508563959.pdfIn PDF document text
- https://peoplehelppeople.net/uploads/File/82161772639.pdfIn PDF document text
- https://chicagoportablexray.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133f81dd3f8b---79841546504.pdfIn PDF document text
- http://headlinesdinerla.com/uploads/files/7684347624.pdfIn PDF document text
- http://www.dereformasenalicante.com/archivos/files/wewisowofefijoxunenun.pdfIn PDF document text
- https://buildingexpertsdirectory.com/ckfinder/userfiles/files/nubewekifugolujexel.pdfIn PDF document text
- http://adgroup.co/userfiles/file/toribejif.pdfIn PDF document text
- https://rsvforum.com/userfiles/file/bopowefufakesofavujol.pdfIn PDF document text
- http://webs123.com/userfiles/file/64465858065.pdfIn PDF document text
- http://style4.allwebeasy.com/userfiles/files/60374528544.pdfIn PDF document text
- https://sportuna.be/ckfinder/userfiles/files/besazejavudesakumazoke.pdfIn PDF document text
- http://dienlanhhuubinh.com/upload/files/76148185190.pdfIn PDF document text
- https://jsptti.com/ckeditor/ckfinder/userfiles/files/90377209640.pdfIn PDF document text
- https://travelselection.us/wp-content/plugins/formcraft/file-upload/server/content/files/16137bbaf3ef5d---mowuwuwazelo.pdfIn PDF document text
- https://www.cir.cloud/wp-content/plugins/formcraft/file-upload/server/content/files/1613520f89db17---56678256396.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BvfzZFkJO3s/uplcv?utm_term=play+gta+4+online+freePDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b44b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB44B | 16036 bytes |
SHA-256: f2528ab191b798e5a13fe704e400fab941ef4b18c5b1d950e8a8b26e4d55c666 |
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font_01_sfnt_off0000dd75.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD75 | 10412 bytes |
SHA-256: c24d20ab0967bdc6cd4a3a406ba57e975aa637f1b974495d29e912a719ce3e77 |
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font_02_sfnt_off0000f541.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF541 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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